Speaking to the Mirror, body language expert Judi James said: “The contrast between William’s choice of pose to illustrate his own view of fatherhood and the pose he chose to celebrate his own father’s role in his life could hardly be stronger, suggesting that although he appreciates the kind of upbringing he had, he is determined to forge something different for his own children.”

Further explaining, she adds that William appears to want a more “modern” upbringing for George, 10, Charlotte, nine, and Louis, six.

According to Ms James, this is shown through images such as the one released for Father’s Day.

She said: “William continually shows how he uses lessons from his past to forge the kind of family unit he sees as more modern and more ideal.

“His understanding of duty and loyalty seems strong but he is clearly also determined to create a more casual and playful life for his own children than he or his father were allowed to enjoy.”